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package dao;

import domain.pojo.User;
import java.util.List;

/**
 *
 * @author lion
 */
public abstract class UserDao {

    public abstract List<User> getUsers();

    public abstract User getUser(int userId);

    public abstract Integer insertUser(User user);

    public abstract boolean updateUser(User user);

    public abstract boolean deleteUser(User user);
}
